CN113988842A

CN113988842A - Service method, system, terminal equipment and storage medium based on cash register

Info

Publication number: CN113988842A
Application number: CN202111328466.0A
Authority: CN
Inventors: 邵杭; 林喆; 周林
Original assignee: Shanghai Sunmi Technology Group Co Ltd; Citaq Co Ltd
Current assignee: Shanghai Sunmi Technology Group Co Ltd; Citaq Co Ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-01-28

Abstract

The invention provides a service method, a service system, terminal equipment and a storage medium based on a cash register, wherein the method comprises the following steps: the at least two cash registers are respectively arranged in different areas, and each cash register is integrated with a first UWB tag; the method comprises the following steps: acquiring receiving time information and sending time information of a second pulse signal and a label code of the second UWB label from the cash register; the second pulse signal is broadcasted and sent to the cash register by the mobile terminal integrated with a second UWB tag; and calculating the positioning position of each mobile terminal by using a positioning algorithm according to the receiving time information, the sending time information and the label codes. The invention improves the utilization rate of unit area of a user and provides accurate positioning service with low cost.

Description

Service method, system, terminal equipment and storage medium based on cash register

Technical Field

The invention relates to the technical field of positioning, in particular to a cashier device supporting UWB positioning service and a using method thereof.

Background

Ultra Wideband (UWB) is a carrier-free communication technology. And the data is transmitted by using nanosecond-level non-sine wave narrow pulses. The typical working frequency range is 3.25 GHz-6.75 GHz, the sub-nanometer precise time can be obtained because the bandwidth generally exceeds 500MHz, the pulse width adopted by the device is nanosecond or sub-nanosecond, and the centimeter or even millimeter-level distance measurement precision can be theoretically obtained. Because UWB systems emit narrow pulses of extremely short duration and very low duty cycle, their multipath signals are separable in time. In addition, UWB adopts time hopping spread spectrum signal, the system has wider frequency band, according to the Shannon formula, under the condition that the channel capacity is certain, the high bandwidth can reduce the signal-to-noise ratio. Therefore, UWB has a strong immunity to interference.

The UWB positioning scheme has the advantages of high positioning accuracy and high network implementation cost, and has the disadvantages that a UWB base station network for positioning needs to be built, the transmission distance of pulse signals is short, the signal transmission distance is about 20-60 meters in an indoor scene shielded by a wall, positioning and accurate navigation service is realized in the environment of a large-scale shopping mall, and enough UWB base stations need to be deployed.

Disclosure of Invention

The invention aims to provide a service method, a service system, terminal equipment and a storage medium based on a cash register, and solves the technical problems that the reconstruction cost of laying a UWB base station is high, and the occupied area cannot be effectively utilized.

The technical scheme provided by the invention is as follows:

the invention provides a service method based on cash registers, wherein at least two cash registers are respectively arranged in different areas, and each cash register is integrated with a first UWB (ultra wide band) label; the method comprises the following steps:

acquiring receiving time information and sending time information of a second pulse signal and a label code of the second UWB label from the cash register; the second pulse signal is broadcasted and sent to the cash register by the mobile terminal integrated with a second UWB tag;

and calculating the positioning position of each mobile terminal by using a positioning algorithm according to the receiving time information, the sending time information and the label codes.

Further, the step of obtaining the positioning position of each mobile terminal by the calculation includes:

acquiring a navigation request sent by the mobile terminal; the navigation request includes a destination;

and carrying out route planning according to the destination and the positioning position to generate a corresponding navigation route.

calculating to obtain a distance value between the mobile terminal and the cash register according to a single base station positioning algorithm;

judging whether the distance value is smaller than a first preset distance threshold value or not;

if the distance value is smaller than a first preset distance threshold value, a promotion link is sent to the mobile terminal;

and if the response permission information sent by the mobile terminal is received, automatically queuing the number for the user to which the mobile terminal belongs.

acquiring a face payment request initiated by the cash register to perform face recognition; the face payment request comprises a face image to be authenticated;

after the face identification verification is passed, judging whether UWB binding records corresponding to the face to be authenticated exist or not; the binding record comprises a corresponding relation between the label code and the user identity information corresponding to the face to be authenticated;

if the distance value is smaller than the second preset distance threshold value, judging whether the distance value between the mobile terminal and the cash register is smaller than the second preset distance threshold value;

if the distance value is smaller than a second preset distance threshold value, sending a payment inquiry message to the mobile terminal to trigger the mobile terminal to pop up to display the payment inquiry message;

if payment permission information sent by the mobile terminal is received, the transaction corresponding to the face payment request is completed;

and if payment refusing information sent by the mobile terminal is received or payment allowing information is not received within a preset time length, canceling the transaction corresponding to the face payment request.

The invention also provides a service system based on the cash register, which comprises:

the mobile terminal is integrated with a second UWB tag and used for broadcasting and transmitting pulse signals; the pulse signal comprises sending time information and a tag code of the first UWB tag;

the system comprises at least two cash registers, a first UWB (ultra wide band) tag and a second UWB tag, wherein the at least two cash registers are respectively arranged in different areas, and each cash register is integrated with the first UWB tag;

the cash register is used for receiving the pulse signal;

the server is used for acquiring receiving time information and sending time information of a second pulse signal and the label code of the second UWB label from the cash register;

and the server is also used for calculating the positioning position of each mobile terminal by using a positioning algorithm according to the receiving time information, the sending time information and the label codes.

Further, the server includes:

the communication module is used for acquiring a navigation request sent by the mobile terminal; the navigation request includes a destination;

and the generating module is used for planning a route according to the destination and the positioning position to generate a corresponding navigation route.

Further, the server further includes:

the first acquisition module is used for calculating a distance value between the mobile terminal and the cash register according to a single base station positioning algorithm;

the judging module is used for judging whether the distance value is smaller than a first preset distance threshold value or not;

and the first processing module is used for sending a promotion link to the mobile terminal if the distance value is smaller than a first preset distance threshold value, and automatically queuing a number for a user to which the mobile terminal belongs if the permission response information sent by the mobile terminal is received.

Further, the server further includes:

the second acquisition module is used for acquiring the face payment request initiated by the cash register so as to perform face recognition; the face payment request comprises a face image to be authenticated;

the query module is used for judging whether UWB binding records corresponding to the face to be authenticated exist or not after the face identification verification is passed; the binding record comprises a corresponding relation between the label code and the user identity information corresponding to the face to be authenticated;

the second judging module is used for judging whether the distance value between the mobile terminal and the cash register is smaller than a second preset distance threshold value or not if the distance value exists;

the second processing module is used for sending a payment inquiry message to the mobile terminal if the distance value is smaller than a second preset distance threshold value so as to trigger the mobile terminal to display the payment inquiry message in a popup window;

the second processing module is further configured to complete a transaction corresponding to the face payment request if payment-allowed information sent by the mobile terminal is received; and if payment refusing information sent by the mobile terminal is received or payment allowing information is not received within a preset time length, canceling the transaction corresponding to the face payment request.

The invention also provides a terminal device, which comprises a processor, a memory and a computer program stored in the memory and capable of running on the processor, wherein the processor is used for executing the computer program stored in the memory and realizing the operation executed by the service method based on the cash register.

The invention also provides a storage medium, wherein at least one instruction is stored in the storage medium, and the instruction is loaded and executed by a processor to realize the operation executed by the service method based on the cash register.

According to the service method, the system, the terminal equipment and the storage medium based on the cash register, the desktop/large self-service cash register equipment is high in popularization rate in large shopping malls or supermarkets, but generally only supports a 4G or WIFI networking function, and after the desktop/large self-service cash register equipment integrates the UWB function, UWB base station service can be conveniently provided for users, and the service is used for indoor accurate navigation service of the shopping malls, promotion content push service of specific merchants, intelligent queuing number-calling service of restaurants and restaurants based on UWB positioning and ranging service and the like.

Drawings

The above features, technical features, advantages and implementations of a cash register based service method, system, terminal device and storage medium will be further explained in the following description of preferred embodiments in a clearly understandable manner with reference to the accompanying drawings.

FIG. 1 is a flow chart of one embodiment of a cash register based service method of the present invention;

FIG. 2 is a schematic diagram of a hardware architecture of one embodiment of the cash register of the present invention;

fig. 3 is a schematic diagram of a network architecture among a mobile terminal, a cash register and a server according to a service method of the present invention;

FIG. 4 is a flow chart of another embodiment of a cash register based service method of the present invention;

fig. 5 is a schematic structural diagram of an embodiment of a service system based on a cash register.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.

One embodiment of the present invention, as shown in fig. 1 and fig. 2, is a service method based on a cash register, including: the at least two cash registers are respectively arranged in different areas, and each cash register is integrated with a first UWB tag; the method comprises the following steps:

s100, acquiring receiving time information and sending time information of a second pulse signal and a label code of a second UWB label from a cash register; the second pulse signal is broadcast and sent to the cash register by the mobile terminal integrated with the second UWB tag;

specifically, the UWB tag can emit a pulse signal, and the pulse signal emitted from the UWB tag is received and transmitted by the positioning base station, wherein the UWB tag includes a UWB module, a transmitter antenna, and a receiver antenna. Each UWB tag has a unique ID, and the object to be positioned and the UWB tag can be associated through the unique ID, so that the positioning base station finds the position actually positioned through the UWB tag. The mobile terminal includes, but is not limited to, a mobile phone, a tablet, a notebook, a smart watch, and the like, which are integrated with the second UWB tag. UWB is essentially a carrierless spread spectrum technique with very low duty cycle impulse pulses as the information carrier. The cash registers are arranged in different areas in a shopping mall, each cash register is integrated with a first UWB (ultra wide band) tag (namely a UWB chip), the tag codes (namely tag IDs) of the first UWB tags arranged in each cash register are different, namely, each cash register is provided with the first UWB tag with unique identification identity, and the cash register integrated with the first UWB tag is used as a UWB base station.

The cash register or the POS machine is integrated with a first UWB tag matched with a second UWB tag to serve as a UWB base station, and UWB positioning and ranging functions are achieved. Because cash registering machine or POS machine are integrated with first UWB label, and mobile terminal is integrated with the second UWB label with first UWB label adaptation, so, each cash registering machine or POS machine can establish UWB communication with a plurality of mobile terminal respectively. That is, the second UWB tag of the mobile terminal repeatedly and uninterruptedly transmits a second pulse signal to the cash register or the POS station whose identity is the UWB base station in UWB pulses, the second pulse signal transmitted by the mobile terminal is received by the cash register or the POS station, and if the cash register or the POS station transmits the first pulse signal to the mobile terminal in a feedback manner, the mobile terminal is allowed to establish UWB communication with itself in response, so that the time when the second pulse signal of the mobile terminal reaches the receiver antenna is measured by the cash register or the POS station using a high-sensitivity short pulse detector after the UWB communication is established, which is the reception time information of the second pulse signal. In addition, since the mobile terminal records the sending time, i.e. the sending time information, when sending the second pulse signal, and the second pulse signal sent by the mobile terminal carries the tag code of the second UWB tag integrally installed on the mobile terminal, the cash register or the POS machine can receive the second pulse signal from the mobile terminal and record the receiving time information, the sending time information, and the tag code of the second UWB tag of the second pulse signal.

The cash register equipment of this embodiment can be self-service POS cash register equipment, and this embodiment integrates UWB basic station function on the cash register equipment in current market or dining room, and the comprehensive cost is lower, can dispose in a flexible way, supports position networking function moreover, can share data and give backstage cloud service or LBS supplier, provides accurate indoor map navigation service.

And S200, calculating the positioning position of each mobile terminal by using a positioning algorithm according to the receiving time information, the sending time information and the label codes.

Specifically, the positioning algorithm includes a multiple base station TOF (Time of flight) positioning algorithm and a multiple base station TDOA (Time Difference of Arrival) positioning algorithm. Each mobile terminal is provided with a different tag code (i.e. tag ID) of the installed second UWB tag, i.e. each mobile terminal is provided with a second UWB tag uniquely identifying the identity. The mobile terminal broadcasts and sends the pulse signal to the cash register in real time, and each mobile terminal is independently provided with different second UWB tags, so that in order to distinguish the different second UWB tags, the mobile terminal reports the tag code of the second UWB tag and the sending time information of the broadcast sending pulse signal to each cash register while sending the pulse signal to the cash register in a broadcasting manner. The cash register is provided with the transceiver provided with the first UWB tag and the pulse signal, so that the cash register can read the receiving time information of the pulse signal acquired by the cash register through the pulse signal transceiver.

As shown in fig. 3, since the cash register or the POS implements communication with a background server (hereinafter, referred to as a server) through WIFI, a 4G cellular network, a 5G cellular network or ethernet, the positioning engine software of the server calculates and determines a time difference between the second pulse signal of the mobile terminal reaching different positioning base stations according to the receiving time information, the sending time information and the tag code of the second UWB tag, and calculates a relative position of the mobile terminal with respect to each UWB base station (i.e., the cash register or the POS) by using a positioning algorithm.

In this embodiment, any point in the field may be selected as the origin to establish a world coordinate system, after the cash register or the POS is installed in the store, since the position of the cash register or the POS is relatively fixed, that is, after the cash register or the POS is installed in the places such as the mall, the restaurant, the store, and the like, unless the place is modified, the installation position of the cash register or the POS is generally fixed, the position coordinates of each cash register or the POS in the environment map may be marked according to the environment map corresponding to the place and the installation position of the cash register or the POS in the place, and after the relative position of the mobile terminal with respect to each UWB base station is obtained by the calculation by the above method, the positioning position of the mobile terminal on the world coordinate system may be calculated according to the position coordinates of each cash register or POS in the environment map.

The method comprises the steps that point-to-point ranging is carried out between the UWB base station and the mobile terminal based on a multi-base-station TOF (time of flight) positioning algorithm or a multi-base-station TDoA positioning algorithm, the distance from the beginning to the end is obtained by multiplying the propagation speed by the time from sending to receiving of a pulse signal, the relative distance between the mobile terminal and the UWB base station is obtained through calculation, and then the positioning position of the mobile terminal is obtained through calculation according to the distances between the mobile terminal and the UWB base stations. The TOF is suitable for application scenes with complex environments, such as modeling factories, power plants, chemical plants, office buildings and the like. The TDOA is suitable for application scenes with clear and simple environment, such as outdoor sports, warehouses and the like.

The multi-base station TOF positioning algorithm specifically comprises the following steps: since the positions of the cash registers, that is, the UWB base stations are fixed, if the coordinates of the UWB base stations N1, N2, and N3 are set to be R1(x1, y1), R2(x2, y2), and R3(x3, y3), respectively, the coordinate of any mobile terminal M0 is calculated to be Ro (x0, y0), d1, d2, and d3 are set to be the relative distances calculated by the propagation time of the signal between the UWB base station and the mobile terminal M0, each UWB base station draws a circular track with the relative distances as the radius, the unique intersection point coordinate can be calculated by using three circular equations to be the positioning position of the mobile terminal, and the calculation formula is as follows:

the propagation speed of the second pulse signal is constant v of 30 km/sec, and the times at which the second pulse signal reaches the UWB base stations N1, N2, and N3 from the mobile terminal M0 are t1, t2, and t3, respectively.

The multi-base-station TDoA positioning algorithm specifically comprises the following steps: and calculating the distance difference from the second pulse signal to each UWB base station by comparing the time difference of the second pulse signal reaching each UWB base station, and further making hyperbolas taking the UWB base stations as focuses and taking the distance difference as a long axis, wherein the intersection point of the three groups of hyperbolas is the position of the mobile terminal. Since the positions of the cash registers, that is, the UWB base stations are fixed, if the coordinates of the UWB base stations N1, N2, N3, and N4 are set to be R1(x1, y1), R2(x2, y2), R3(x3, y3), and R4(x4, y4), respectively, the coordinate of any one mobile terminal M0 is determined to be R0(x0, y0), and the distance difference between the second pulse signal transmitted by the mobile terminal M0 and the stations between the two UWB base stations is determined to be a constant and a curved trajectory is drawn, the intersection point coordinate of two hyperbolas can be calculated as the positioning position of the mobile terminal by using the two curved equations, and the calculation formula is shown below:

the propagation speed of the second pulse signal is constant v of 30 km/sec, and the time for the second pulse signal to reach the UWB base stations N1, N2, N3, and N4 from the mobile terminal M0 is T1, T2, T3, and T4, respectively.

The server may calculate the positioning position of any one of the mobile terminals M0 according to the positioning calculation method, and similarly, may calculate the positioning positions of other mobile terminals Mi by referring to the calculation method, which is not described in detail herein. Of course, the server may also calculate the positioning position of the positioning mobile terminal by using a multi-base-station TOF positioning algorithm and a multi-base-station TDoA positioning algorithm, set different weight values according to the accuracy of the corresponding algorithms, and then perform weighting calculation to obtain a more accurate positioning result.

The invention solves the technical problems of hardware cost and environment reconstruction cost of additionally laying a large number of UWB base stations in the environment of a large-scale shopping mall or a supermarket in the prior art, and can realize accurate positioning service based on the fact that the existing cash register in the shopping mall is additionally provided with a first UWB tag.

In an embodiment of the present invention, a service method based on a cash register includes: the at least two cash registers are respectively arranged in different areas, and each cash register is integrated with a first UWB tag; the method comprises the following steps:

s200, calculating the positioning position of each mobile terminal by using a positioning algorithm according to the receiving time information, the sending time information and the label codes;

s310, acquiring a navigation request sent by the mobile terminal; the navigation request includes a destination;

s320, carrying out route planning according to the destination and the positioning position to generate a corresponding navigation route.

Particularly, the method greatly ensures the real-time performance, stability and accuracy of positioning in an indoor field, so that the indoor automatic navigation can be realized based on a high-accuracy positioning result even under the condition of no GNSS signal coverage. The invention adopts UWB positioning navigation technology, is not influenced by illumination, brightness and the like, and provides navigation positioning precision due to signal intensity. The invention can realize fully autonomous indoor navigation, can greatly reduce the arrangement of base stations compared with the arrangement of base stations required by indoor positioning of Bluetooth beacons, can greatly reduce the arrangement cost of the base stations compared with the pure UWB indoor positioning, and has more continuous and accurate indoor positioning due to smaller distance between cash registers. The invention directly carries out navigation planning according to the positioning position of the mobile terminal, so that the planned navigation route is more accurate, and the user can more quickly reach the destination expected to be reached by the user. And the accurate positioning is realized by utilizing the calculation of a positioning algorithm and the transceiving of pulse signals between the UWB base station and the mobile terminal, so that a user can quickly and accurately find a destination.

Illustratively, as shown in fig. 3, the application layer is composed of one or more application-specific service elements and one or more common application service elements, wherein the one or more application-specific service elements provide a specific application service. And the service layer is used for helping the application layer to distribute tasks, performing positioning engine software and system software management and providing an SDK front-end interface and a background interface. First UWB label is integrated in cashier's equipment department for UWB location and range finding, simultaneously first UWB label and mobile terminal 1 or mobile terminal 2 carry out the interconnection through UWB pulse signal. And the transmission layer is used for providing a transmission channel so that the cash register device performs data interaction with the service layer, the mobile terminal 1 or the mobile terminal 2. After a user starts a positioning service using a mobile phone supporting the UWB tag function, the mobile terminal 1 or the mobile terminal 2 continuously transmits a data frame (i.e., a second pulse signal of the present invention) with UWB pulse repetition. After the UWB burst is received by the UWB base station (cash register/POS machine), the time of arrival of each data frame at the receiver antenna is measured using a high sensitivity short pulse detector.

In this embodiment, the positioning engine software determines, with reference to calibration data (i.e., the tag code of the second UWB tag and the transmission time information of the second pulse signal) sent by the mobile phone pulse signal and the reception time information of the second pulse signal by the cash register, a time difference between the arrival of the second pulse signal at different cash registers, and calculates the accurate position of the first UWB tag, i.e., the mobile terminal, by using a three-point positioning technique and a TDOA algorithm. In addition, the invention also realizes the real-time navigation function by matching with the indoor map software of the mobile phone. When the cash register apparatus is installed in a store, the position will be relatively fixed. At this time, the position of the device is uploaded to the server through the WIFI or 4G network. The cash register equipment can be self-service POS cash register equipment, the UWB base station function is integrated on the cash register equipment in the existing market or restaurant, the comprehensive cost is low, the deployment is flexible, the position networking function is supported, data can be shared to a background cloud service or LBS (location based service) provider, and accurate indoor map navigation service is provided.

s410, calculating according to a single base station positioning algorithm to obtain a distance value between the mobile terminal and the cash register;

specifically, a point-to-point ranging application based on a TOF algorithm is performed between the UWB base station and the mobile terminal, and TOF is a time-of-flight ranging method, and a distance between the mobile terminal and the cash register is obtained by measuring time from a start to a return of a pulse signal, multiplying the time by a propagation speed (the propagation speed of the pulse signal in the air is a fixed value v equal to 30 ten thousand KM/sec), and dividing the distance by 2.

S420, judging whether the distance value is smaller than a first preset distance threshold value;

s430, if the distance value is smaller than a first preset distance threshold value, sending a promotion link to the mobile terminal;

s450, if the response permission information sent by the mobile terminal is received, the user to which the mobile terminal belongs automatically carries out number taking and queuing.

Specifically, the promotion links include promotion advertisements of merchants (such as clothing stores, convenience stores, restaurants, supermarkets, and the like), promotion contents such as LOG. In the embodiment, the user mobile phone starts UWB service, after the mobile phone is close to a store cash register for a certain distance, the cash register device detects that the user mobile phone is close to, and the user mobile phone automatically gets a number and queues up the number or arranges to use a dining seat number, so that a merchant can conveniently find potential customers, the advertising effect is improved, and more convenience is brought to the life of people.

The invention solves the technical problems of hardware cost and environment reconstruction cost of additionally laying a large number of UWB base stations in the environment of a large-scale shopping mall or a supermarket in the prior art, and can realize accurate positioning service based on the fact that the existing cash register in the shopping mall is additionally provided with a first UWB tag. In addition, detect so that judge like mobile terminal sends the popularization and connect between mobile terminal and the cash registering machine, be favorable to improving advertisement publishing efficiency, reduce advertisement publishing cost, richen user experience, the accurate degree is higher, has good practicality and spreading value.

One embodiment of the present invention, as shown in fig. 4, is a service method based on a cash register, including: the at least two cash registers are respectively arranged in different areas, and each cash register is integrated with a first UWB tag; the method comprises the following steps:

s510, a face payment request initiated by the cash register is acquired for face recognition; the face payment request comprises a face image to be authenticated;

s520, after the face identification verification is passed, judging whether UWB binding records corresponding to the face to be authenticated exist; the binding record comprises a corresponding relation between the label code and the user identity information corresponding to the face to be authenticated;

s530, if the distance value between the mobile terminal and the cash register is smaller than a second preset distance threshold value, judging whether the distance value between the mobile terminal and the cash register is smaller than the second preset distance threshold value;

s540, if the distance value is smaller than a second preset distance threshold value, sending a payment inquiry message to the mobile terminal to trigger the mobile terminal to popup to display the payment inquiry message;

s550, if payment permission information sent by the mobile terminal is received, completing the transaction corresponding to the face payment request;

and S560, if the payment refusing information sent by the mobile terminal is received or the payment allowing information is not received within the preset time, canceling the transaction corresponding to the face payment request.

Specifically, as the face payment device is more and more popular, the security problem of the face payment is more and more emphasized. A UWB-enabled cash register may enable dual security authentication functionality. If the UWB chip ID of the user mobile phone is bound with the identity information, the face authentication can be carried out, and meanwhile, whether the paid person position information is within a safe distance from the cash register device or not can be confirmed through the pulse signal, so that the face information is prevented from being stolen and brushed. The UWB chip ID of the user mobile phone of the embodiment binds identity information, and when the face authentication is carried out, whether the paid person position information is within a safe distance from the cash register device or not is confirmed through the pulse signal, so that the authentication of the safe distance set by the cash register payment safety is realized. The UWB base station function is integrated on the cash register in the existing market or restaurant, the comprehensive cost is low, the flexible deployment is realized, the position networking function is supported, data can be shared to a background cloud service or LBS (location based service) provider, and the accurate indoor map navigation service is provided. In addition, after the distance identification is added, the condition that the payment two-dimensional code is stolen to be brushed can be effectively prevented. For example, after a mobile phone pays for a two-dimensional code screenshot or takes a picture, the image is used for scanning and paying in a certain time. The invention mainly calculates the relative distance between two devices based on a point-to-point distance measurement method of the two devices between the mobile terminal and the UWB base station, thereby realizing the authentication of the safe distance of the payment safety setting of the cash register.

One embodiment of the present invention, as shown in fig. 5, is a service system based on a cash register, including:

the mobile terminal is integrated with a second UWB tag and used for broadcasting and transmitting pulse signals; the pulse signal comprises sending time information and a label code of the first UWB label;

the system comprises at least two cash registers, a first UWB (ultra wide band) tag, a second UWB tag and a communication module, wherein the at least two cash registers are respectively arranged in different areas, and each cash register is integrated with the first UWB tag;

the cash register is used for receiving the pulse signal;

the server is used for acquiring the receiving time information and the sending time information of the second pulse signal and the label code of the second UWB label from the cash register;

Specifically, this embodiment is a system embodiment corresponding to the above method embodiment, and specific effects refer to the above method embodiment, which is not described in detail herein.

Based on the foregoing embodiment, the server includes:

and the generating module is used for planning the route according to the destination and the positioning position to generate a corresponding navigation route.

Based on the foregoing embodiment, the server further includes:

the first acquisition module is used for calculating a module and calculating a distance value between the mobile terminal and the cash register according to a single base station positioning algorithm;

and the first processing module is used for sending a promotion link to the mobile terminal if the distance value is smaller than a first preset distance threshold value, and automatically queuing the number for the user to which the mobile terminal belongs if the permission response information sent by the mobile terminal is received.

Based on the foregoing embodiment, the server further includes:

the second acquisition module is used for acquiring a face payment request initiated by the cash register so as to perform face recognition; the face payment request comprises a face image to be authenticated;

the second processing module is used for sending a payment inquiry message to the mobile terminal if the distance value is smaller than a second preset distance threshold value so as to trigger the mobile terminal to pop up to display the payment inquiry message;

the second processing module is also used for completing the transaction corresponding to the face payment request if the payment permission information sent by the mobile terminal is received; and if payment refusing information sent by the mobile terminal is received or payment allowing information is not received within a preset time length, canceling the transaction corresponding to the face payment request.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of program modules is illustrated, and in practical applications, the above-described distribution of functions may be performed by different program modules, that is, the internal structure of the apparatus may be divided into different program units or modules to perform all or part of the above-described functions. Each program module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one processing unit, and the integrated unit may be implemented in a form of hardware, or may be implemented in a form of software program unit. In addition, the specific names of the program modules are only used for distinguishing the program modules from one another, and are not used for limiting the protection scope of the application.

In one embodiment of the invention, a terminal device comprises a processor and a memory, wherein the memory is used for storing a computer program; and the processor is used for executing the computer program stored in the memory and realizing the service method based on the cash register in the corresponding method embodiment.

The terminal equipment can be desktop computers, notebooks, palm computers, tablet computers, mobile phones, man-machine interaction screens and other equipment. The terminal device may include, but is not limited to, a processor, a memory. Those skilled in the art will appreciate that the foregoing is merely an example of a terminal device and is not limiting of terminal devices, and that more or fewer components than those shown, or some of the components in combination, or different components may be included, such as: the terminal device may also include input/output interfaces, display devices, network access devices, communication buses, communication interfaces, and the like. A communication interface and a communication bus, and may further comprise an input/output interface, wherein the processor, the memory, the input/output interface and the communication interface complete communication with each other through the communication bus. The memory stores a computer program, and the processor is used for executing the computer program stored in the memory and realizing the service method based on the cash register in the corresponding method embodiment.

The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory may be an internal storage unit of the terminal device, such as: hard disk or memory of the terminal device. The memory may also be an external storage device of the terminal device, such as: the terminal equipment is provided with a plug-in hard disk, an intelligent memory Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) and the like. Further, the memory may also include both an internal storage unit and an external storage device of the terminal device. The memory is used for storing the computer program and other programs and data required by the terminal device. The memory may also be used to temporarily store data that has been output or is to be output.

A communication bus is a circuit that connects the described elements and enables transmission between the elements. For example, the processor receives commands from other elements through the communication bus, decrypts the received commands, and performs calculations or data processing according to the decrypted commands. The memory may include program modules such as a kernel (kernel), middleware (middleware), an Application Programming Interface (API), and applications. The program modules may be comprised of software, firmware or hardware, or at least two of the same. The input/output interface forwards commands or data entered by a user via the input/output interface (e.g., sensor, keyboard, touch screen). The communication interface connects the terminal equipment with other network equipment, user equipment and a network. For example, the communication interface may be connected to a network by wire or wirelessly to connect to external other network devices or user devices. The wireless communication may include at least one of: wireless fidelity (WiFi), Bluetooth (BT), Near Field Communication (NFC), Global Positioning Satellite (GPS) and cellular communications, among others. The wired communication may include at least one of: universal Serial Bus (USB), high-definition multimedia interface (HDMI), asynchronous transfer standard interface (RS-232), and the like. The network may be a telecommunications network and a communications network. The communication network may be a computer network, the internet of things, a telephone network. The terminal device may be connected to the network via a communication interface, and a protocol used by the terminal device to communicate with other network devices may be supported by at least one of an application, an Application Programming Interface (API), middleware, a kernel, and a communication interface.

In an embodiment of the present invention, a storage medium stores at least one instruction, and the instruction is loaded and executed by a processor to implement the operations performed by the corresponding embodiments of the service method based on a cash register. For example, the storage medium may be a read-only memory (ROM), a Random Access Memory (RAM), a compact disc read-only memory (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, and the like.

They may be implemented in program code that is executable by a computing device such that it is executed by the computing device, or separately, or as individual integrated circuit modules, or as a plurality or steps of individual integrated circuit modules. Thus, the present invention is not limited to any specific combination of hardware and software.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or recited in detail in a certain embodiment.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated modules/units may be stored in a storage medium if they are implemented in the form of software functional units and sold or used as separate products. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by sending instructions to relevant hardware through a computer program, where the computer program may be stored in a storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program may be in source code form, object code form, an executable file or some intermediate form, etc. The storage medium may include: any entity or device capable of carrying the computer program, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signal, telecommunication signal, software distribution medium, etc. It should be noted that the content of the storage medium may be increased or decreased as appropriate according to the requirements of legislation and patent practice in the jurisdiction, for example: in certain jurisdictions, in accordance with legislation and patent practice, computer-readable storage media do not include electrical carrier signals and telecommunications signals.

It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A service method based on cash registers is characterized in that at least two cash registers are respectively arranged in different areas, and each cash register is integrated with a first UWB tag; the method comprises the following steps:

2. The cash register-based service method according to claim 1, wherein the step of calculating the positioning position of each mobile terminal comprises:

3. The cash register-based service method according to claim 1, wherein the step of calculating the positioning position of each mobile terminal comprises:

4. The cash register-based service method according to any one of claims 1 to 3, wherein the step of calculating the positioning position of each mobile terminal comprises:

5. A service system based on a cash register, comprising:

the cash register is used for receiving the pulse signal;

6. The cash register-based service system according to claim 5, wherein the server comprises:

7. The cash register-based service system according to claim 5, wherein the server further comprises:

8. The cash register-based service system according to any one of claims 5 to 7, wherein the server further comprises:

9. A terminal device, comprising a processor, a memory and a computer program stored in the memory and executable on the processor, the processor being configured to execute the computer program stored on the memory to perform the operations performed by the cash register based service method according to any one of claims 1 to 4.

10. A storage medium having stored therein at least one instruction loaded and executed by a processor to perform operations performed by the cash register-based service method of any one of claims 1 to 4.